Domain studies on mechanically alloyed Fe-Zr-B-Cu-nanocrystalline powder

Author

Schäfer, R. ; Roth, S. ; Stiller, C. ; Eckert, J. ; Klement, U. ; Schultz, L.

Author_Institution

IFW Dresden, Germany

Volume

32

Issue

5

fYear

1996

fDate

9/1/1996 12:00:00 AM

Firstpage

4383

Lastpage

4385

Abstract

Soft magnetic FeZrBCu-particles with a grain structure in the nanometer range and a coercivity of about 600 A/cm were fabricated by mechanical alloying and subsequent annealing. Domain observation by high resolution Kerr microscopy shows a patch domain structure and a inhomogeneous distribution of coercivity across the particle diameter, indicating the existence of strong inhomogeneous long-range stresses in addition to atomic level microstress. The strong stress together with an inhomogeneous microstructure is believed to be responsible for the poor soft magnetic properties of the material

Keywords

Kerr magneto-optical effect; boron alloys; coercive force; copper alloys; crystal microstructure; ferromagnetic materials; grain size; iron alloys; magnetic domains; magnetic particles; materials preparation; mechanical alloying; nanostructured materials; soft magnetic materials; zirconium alloys; Fe-Zr-B-Cu; annealing; atomic level microstress; coercivity; domain structure; grain structure; high resolution Kerr microscopy; mechanical alloying; mechanically alloyed Fe-Zr-B-Cu-nanocrystalline powder; patch domain structure; poor soft magnetic properties; soft magnetic FeZrBCu-particles; Alloying; Annealing; Coercive force; Magnetic domains; Magnetic materials; Microscopy; Microstructure; Nanostructures; Soft magnetic materials; Stress;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.538876

Filename

538876